In addition to a few other articles, I have published an article to explain the installation and configuration of the pxlBlck plugin.
A small feature that I'm a little proud of (not because it's special, but because I've worked on it for a long time) is the color picker with which you can set the different colors of the screensaver or clock faces. The color can be set directly in the web menu of the ESPEasy plug-in and you don't have to enter RGB values manually (which is still possible). :)
The full article is available here: https://nerdiy.de/en/howto-pxlblck-das-pxlblck-plugin-installieren-und-konfigurieren/